Question

angelina surveyed the students in her neighborhood and obtained the following data: student, school level, school type; student 1, elementary school, public; student 2, middle school, private; student 3, middle school, private; student 4, elementary school, private; student 5, elementary school, public; student 6, elementary school, private; student 7, high school, public; student 8, elementary school, public; student 9, middle school, public; student 10, middle school, private; student 11, high school, public; student 12, elementary school, private; student 13, high school, private; student 14, middle school, public; student 15, middle school, public; student 16, middle school, private; student 17, elementary school, public; student 18, middle school, public; student 19, elementary school, public. construct the contingency table that summarizes the school enrollment by level and type: public, private, total; elementary school, , , ; middle school, , , ; high school, , , ; total, , , . compute the totals for each row and column and the overall total. question help: video written example message instructor post to forum

Explanation:

Step1: Count elementary - public students

Count the number of elementary - school students with public - school type. By looking at the data, we find 7 such students.

Step2: Count elementary - private students

Count the number of elementary - school students with private - school type. There are 4 such students.

Step3: Calculate total elementary students

Add the number of elementary - public and elementary - private students. $7 + 4=11$.

Step4: Count middle - public students

Count the number of middle - school students with public - school type. There are 6 such students.

Step5: Count middle - private students

Count the number of middle - school students with private - school type. There are 5 such students.

Step6: Calculate total middle students

Add the number of middle - public and middle - private students. $6 + 5 = 11$.

Step7: Count high - public students

Count the number of high - school students with public - school type. There are 2 such students.

Step8: Count high - private students

Count the number of high - school students with private - school type. There are 2 such students.

Step9: Calculate total high students

Add the number of high - public and high - private students. $2+2 = 4$.

Step10: Calculate total public students

Add the number of public students in elementary, middle and high schools. $7+6 + 2=15$.

Step11: Calculate total private students

Add the number of private students in elementary, middle and high schools. $4 + 5+2=11$.

Step12: Calculate overall total

Add the total number of public and private students. $15 + 11=26$.

Answer:

	Public	Private	Total
Middle School	6	5	11
High School	2	2	4
Total	15	11	26